JP4881247B2 - Electronic device and manufacturing method thereof - Google Patents

Electronic device and manufacturing method thereof Download PDF

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Publication number
JP4881247B2
JP4881247B2 JP2007184385A JP2007184385A JP4881247B2 JP 4881247 B2 JP4881247 B2 JP 4881247B2 JP 2007184385 A JP2007184385 A JP 2007184385A JP 2007184385 A JP2007184385 A JP 2007184385A JP 4881247 B2 JP4881247 B2 JP 4881247B2
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molded body
antenna pattern
electronic device
antenna
manufacturing
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JP2009021932A (en
Inventor
智 本田
朋子 本田
信好 黒岩
政臣 中畑
淳 森本
義和 畑
晃一 佐藤
彰宏 辻村
誠 田幡
実 櫻井
昌治 加藤
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Toshiba Corp
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Toshiba Corp
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Priority to JP2007184385A priority Critical patent/JP4881247B2/en
Priority to CNA2008101303557A priority patent/CN101345331A/en
Priority to US12/171,592 priority patent/US20090015490A1/en
Publication of JP2009021932A publication Critical patent/JP2009021932A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)

Description

本発明は、電子機器及びその製造方法に関する。   The present invention relates to an electronic device and a method for manufacturing the same.

携帯電話機、ＰＤＡ（Personal Digital Assistant）を含む電子機器において、小型化の要求が強い。アンテナから放射される電磁波が回路部品に与える影響や、集積回路や高周波回路からのノイズがアンテナに与える影響を低減しつつ、小型化するには筐体構造の改善が必要である。   There is a strong demand for downsizing electronic devices including mobile phones and PDAs (Personal Digital Assistants). To reduce the size while reducing the influence of electromagnetic waves radiated from the antenna on circuit components and the influence of noise from integrated circuits and high-frequency circuits on the antenna, it is necessary to improve the housing structure.

この場合、アンテナを集積回路や高周波回路を配置する基板から離して、筐体側に配置する構造を考えることができる。アンテナを筐体の外表面側に配置する場合、意匠的な制約を生じる。また、人体が近接する際のアンテナ特性の変化を生じる可能性もある。従って、筐体の内表面側にアンテナを配置する方がより好ましい。   In this case, it is possible to consider a structure in which the antenna is arranged on the housing side away from the substrate on which the integrated circuit and the high frequency circuit are arranged. In the case where the antenna is disposed on the outer surface side of the housing, a design restriction occurs. In addition, the antenna characteristics may change when a human body approaches. Therefore, it is more preferable to arrange the antenna on the inner surface side of the housing.

しかし、筐体の内表面側は剛性を確保するためリブ構造とする場合が多く、部品配置のためのボスを設ける場合も多い。リブやボスを設けた筐体の内表面側にアンテナパターンを配置する場合、形状に対する制約を生じる。   However, in order to ensure rigidity, the inner surface side of the housing is often a rib structure, and a boss for component placement is often provided. When an antenna pattern is arranged on the inner surface side of a housing provided with ribs and bosses, there is a restriction on the shape.

携帯無線機の液晶表示窓の周囲にループ状に線状アンテナを配置し、アンテナ取付けの省スペース化を行う技術開示例がある（特許文献１）。
特開平１１−１８７０９６号公報 There is a technology disclosure example in which a linear antenna is arranged in a loop around a liquid crystal display window of a portable wireless device to save space for mounting the antenna (Patent Document 1).
JP-A-11-187096

本発明は、良好なアンテナ特性を保ちつつ小型化が可能な電子機器及びその製造方法を提供する。   The present invention provides an electronic device that can be reduced in size while maintaining good antenna characteristics, and a method for manufacturing the same.

本発明の一態様によれば、凹型断面を有し樹脂からなる第１の成型体と、前記第１の成型体の内側に嵌合され、凹型断面を有し樹脂からなる第２の成型体と、前記第１及び第２の成型体の間に挟持されたアンテナパターンと、を備え、前記第１の成型体の表面のうち、前記アンテナパターンと隣接しない側が外表面となることを特徴とする電子機器が提供される。   According to one aspect of the present invention, a first molded body having a concave cross section and made of resin, and a second molded body fitted inside the first molded body and having a concave cross section and made of resin. And an antenna pattern sandwiched between the first and second molded bodies, wherein a side of the surface of the first molded body that is not adjacent to the antenna pattern is an outer surface. An electronic device is provided.

また、本発明の他の一態様によれば、上記の電子機器の製造方法であって、
前記第１の成型体を形成する工程と、前記アンテナパターンを前記第１の成型体の内側に挿入する工程と、前記アンテナパターンを挟持するように、前記第２の成型体を前記第１の成型体の内側に形成または嵌合する工程と、を含むことを特徴とする電子機器の製造方法が提供される。 According to another aspect of the present invention, there is provided a method for manufacturing the above electronic device,
Forming the first molded body; inserting the antenna pattern into the first molded body; and sandwiching the antenna pattern so that the second molded body is the first molded body. And a step of forming or fitting inside the molded body. A method for manufacturing an electronic device is provided.

また、本発明のさらに他の一態様によれば、上記の電子機器の製造方法であって、前記第２の成型体の表面に、印刷、メッキ、導電材塗布のうちのいずれかにより前記アンテナパターンを形成する工程と、前記アンテナパターンを挟持するように前記第２成型体の外側に前記第１の成型体を形成する工程と、を含むことを特徴とする電子機器の製造方法が提供される。   According to yet another aspect of the present invention, there is provided a method for manufacturing the electronic apparatus, wherein the antenna is formed on the surface of the second molded body by any one of printing, plating, and applying a conductive material. There is provided a method for manufacturing an electronic device, comprising: forming a pattern; and forming the first molded body on the outside of the second molded body so as to sandwich the antenna pattern. The

また、本発明のさらに他の一態様によれば、上記の電子機器の製造方法であって、前記第２の成型体をシート状に形成する工程と、前記第２の成型体上に前記アンテナパターンを形成し、前記第２の成型体及び前記アンテナパターンの端部を内部へ折り曲げる工程と、前記アンテナパターンを挟持するように前記第１の成型体を前記第２の成型体の外側に形成する工程と、を含むことを特徴とする電子機器の製造方法が提供される。   According to still another aspect of the present invention, there is provided a method for manufacturing the electronic apparatus, the step of forming the second molded body into a sheet shape, and the antenna on the second molded body. Forming a pattern, bending the second molded body and the end of the antenna pattern inward, and forming the first molded body on the outside of the second molded body so as to sandwich the antenna pattern And a method of manufacturing an electronic device.

本発明により、良好なアンテナ特性を保ちつつ小型化が可能な電子機器及びその製造方法が提供される。   The present invention provides an electronic device that can be reduced in size while maintaining good antenna characteristics, and a method for manufacturing the same.

以下、図面を参照しつつ本発明の実施の形態につき説明する。図１は、本発明の実施の形態にかかる電子機器を表す模式図であり、図１（ａ）は模式斜視図、図１（ｂ）は筐体の構成を表す模式図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1A and 1B are schematic diagrams illustrating an electronic apparatus according to an embodiment of the present invention. FIG. 1A is a schematic perspective view, and FIG. 1B is a schematic diagram illustrating a configuration of a housing.

本図は、折りたたみ式携帯電話機である電子機器を表す。勿論、スライド式電子機器であっても良い。上側筐体５０は、外筐体５２及び内筐体５４を含む。外筐体５２は、折りたたみ式携帯電話機を折りたたんだ状態において、外側に位置する。つまり、折りたたんだ状態において、携帯電話機の外側の意匠面の一部を構成する。一方、内筐体５４は、折りたたみ式携帯電話機を折りたたんだ状態において、内側に位置する。つまり、携帯電話機を折りたたんだ状態において、外側の意匠面を実質的に構成しない。
または、外筐体５２は、通常の使用状態において使用者からみて外側に設けられる。一方、内筐体５４は、通常の使用状態において使用者からみて内側、すなわち使用者の側に設けられる。内筐体５４には、例えば液晶表示装置５５などの画像表示部と操作部の少なくともいずれかが配置される。 This figure shows an electronic device which is a foldable mobile phone. Of course, a sliding electronic device may be used. The upper housing 50 includes an outer housing 52 and an inner housing 54. The outer casing 52 is located outside in a state in which the folding mobile phone is folded. That is, a part of the design surface outside the mobile phone is formed in the folded state. On the other hand, the inner casing 54 is positioned inside in a state in which the folding mobile phone is folded. That is, the outer design surface is not substantially configured in a state in which the cellular phone is folded.
Or the outer housing | casing 52 is provided in an outer side seeing a user in a normal use state. On the other hand, the inner casing 54 is provided on the inner side, that is, on the user's side as viewed from the user in a normal use state. In the inner casing 54, for example, at least one of an image display unit such as a liquid crystal display device 55 and an operation unit is disposed.

また、下側筐体６０は、外筐体６２及び内筐体６４を含む。外筐体６２には、給電部を含む高周波回路、信号処理回路、制御回路、電源回路などが配置される基板、二次電池などが固定される。また、内筐体６４には、キーボードなどが配置される。   The lower housing 60 includes an outer housing 62 and an inner housing 64. A substrate on which a high-frequency circuit including a power feeding unit, a signal processing circuit, a control circuit, a power supply circuit, and the like are disposed, a secondary battery, and the like are fixed to the outer casing 62. In addition, a keyboard or the like is disposed on the inner housing 64.

図１（ｂ）は、上側筐体５０を構成する外筐体５２の構成を表す模式図である。外筐体５２の外表面５６は意匠面であり、電子機器を閉じた状態において外観が重要である。第１の成型体１０の内側に、アンテナパターン層２６が配置される。アンテナパターン層２６は、例えば２つのアンテナパターン２０ａ、２０ｂ、アンテナパターンの保護膜，絶縁膜などを含む。   FIG. 1B is a schematic diagram showing the configuration of the outer casing 52 that constitutes the upper casing 50. The outer surface 56 of the outer casing 52 is a design surface, and the appearance is important when the electronic device is closed. The antenna pattern layer 26 is disposed inside the first molded body 10. The antenna pattern layer 26 includes, for example, two antenna patterns 20a and 20b, an antenna pattern protective film, an insulating film, and the like.

アンテナパターン層２６は、第１の成型体１０及び第２の成型体３０の間に挟持され、筐体一体型の３層構造となっている。第１及び第２の成型体１０，３０は、例えば樹脂材料を用いた成型により形成する。このようにして、外筐体５２が形成できる。   The antenna pattern layer 26 is sandwiched between the first molded body 10 and the second molded body 30, and has a three-layer structure with an integrated housing. The first and second molded bodies 10 and 30 are formed by molding using, for example, a resin material. In this way, the outer casing 52 can be formed.

本実施形態によれば、外筐体５２の内表面の広い面積にアンテナパターンを配置することができる。図１（ｂ）では、２つのアンテナパターン２０ａ、２０ｂが配置されているがより多くのアンテナパターン２０を配置することも可能である。また、筐体内部のリブ、ボスの位置に左右されず、アンテナ形状をより自由に設計できるので、良好なアンテナの特性を得ることができる。   According to this embodiment, the antenna pattern can be arranged in a wide area on the inner surface of the outer casing 52. In FIG. 1B, two antenna patterns 20a and 20b are arranged, but more antenna patterns 20 can be arranged. In addition, the antenna shape can be designed more freely without being influenced by the positions of the ribs and bosses inside the housing, so that favorable antenna characteristics can be obtained.

図２（ａ）は、本実施形態にかかる電子機器の筐体一体型アンテナの第１の実施の形態を表す模式断面図であり、図１（ａ）の鎖線ＡＡに沿った断面を表す。図２（ｂ）は図２（ａ）におけるＡ部の拡大図である。また、図３は、第１の実施の形態の製造工程を表すフロー図である。図２及び図３を参照しつつ本第１の実施形態の構成及び製造工程について説明する。まず、樹脂からなる第１の成型体１０を成型する（Ｓ１００）。続いてフィルム上にメッキ、蒸着、印刷などの工程により導電層を形成し、アンテナパターン層２６とする（Ｓ１０２）。   FIG. 2A is a schematic cross-sectional view illustrating the first embodiment of the housing-integrated antenna of the electronic device according to the present embodiment, and represents a cross section taken along the chain line AA in FIG. FIG.2 (b) is an enlarged view of the A section in Fig.2 (a). FIG. 3 is a flowchart showing the manufacturing process of the first embodiment. The configuration and manufacturing process of the first embodiment will be described with reference to FIGS. First, the first molded body 10 made of resin is molded (S100). Subsequently, a conductive layer is formed on the film by a process such as plating, vapor deposition, and printing to form the antenna pattern layer 26 (S102).

アンテナパターン層２６を、凹型断面を有し樹脂からなる第１の成型体１０に挿入する（Ｓ１０４）。この場合、アンテナパターン保護膜２１は、上記のフィルムでも良いし、別に設けても良い。同様に、絶縁膜２２は上記フィルムでも良いし、厚みが数マイクロメータの樹脂シートであっても良い。アンテナパターン層２６が挿入された後、樹脂からなり凹型断面を有する第２の成形体３０が形成され（Ｓ１０６）、筐体一体型アンテナとなる。この場合、第２の成型体３０を予め形成しておき、嵌合した後、第１の成型体１０と接着または溶着してもよい。   The antenna pattern layer 26 is inserted into the first molded body 10 having a concave cross section and made of resin (S104). In this case, the antenna pattern protective film 21 may be the above film or may be provided separately. Similarly, the insulating film 22 may be the above film or a resin sheet having a thickness of several micrometers. After the antenna pattern layer 26 is inserted, a second molded body 30 made of resin and having a concave cross section is formed (S106), and a housing integrated antenna is obtained. In this case, the second molded body 30 may be formed in advance and fitted, and then bonded or welded to the first molded body 10.

図２において、第２の成型体３０を導電性樹脂から構成し電磁シールド層とすると、液晶表示部または基板など電源供給ユニット４０からのノイズを遮断し、アンテナ特性を改善できる。この場合、給電点４２が導電性である第２の成型体３０と接触することを防止するために、給電点４２を取り囲む第２の成型体３０の開口部３１の側壁には絶縁層２４が設けられる（Ｓ１０８）。なお、第２の成形体３０が絶縁材料であれば絶縁膜２２及び絶縁層２４を省略することができる。   In FIG. 2, when the second molded body 30 is made of a conductive resin and is an electromagnetic shield layer, noise from the power supply unit 40 such as a liquid crystal display unit or a substrate can be cut off and the antenna characteristics can be improved. In this case, in order to prevent the feeding point 42 from contacting the conductive second molded body 30, the insulating layer 24 is provided on the side wall of the opening 31 of the second molded body 30 surrounding the feeding point 42. Provided (S108). If the second molded body 30 is an insulating material, the insulating film 22 and the insulating layer 24 can be omitted.

基板または液晶表示部などからなる電源供給ユニット４０から、給電点４２を介してアンテナパターンへの接続がなされる（Ｓ１１０）。   The power supply unit 40 including a substrate or a liquid crystal display unit is connected to the antenna pattern via the feeding point 42 (S110).

アンテナパターン層２６は、薄い金属を打ち抜いた板金であっても良い。図４は、第１の実施形態の変形例であり、アンテナパターン２０が板金からなる筐体一体型アンテナの模式断面図である。なお、以下の図面において、図２と同様の構成要素には同一番号を付して詳細な説明を省略する。この場合、保護膜２１は無くとも良い。本構造は製造工程を簡素にできる。   The antenna pattern layer 26 may be a sheet metal punched out of a thin metal. FIG. 4 is a modification of the first embodiment, and is a schematic cross-sectional view of a housing-integrated antenna in which the antenna pattern 20 is made of sheet metal. In addition, in the following drawings, the same number is attached | subjected to the component similar to FIG. 2, and detailed description is abbreviate | omitted. In this case, the protective film 21 may not be provided. This structure can simplify the manufacturing process.

図５（ａ）は、筐体一体型アンテナの第２の実施形態を表す模式断面図であり、図５（ｂ）は図５（ａ）におけるＢ部の拡大図である。また、図６は製造工程を表すフロー図である。この場合、樹脂から成る第２の成形体３０をまず成型しておく（Ｓ２００）。第２の成型体３０の上にメッキ、蒸着、印刷などによりアンテナパターン２０を形成し、さらにその上にアンテナパターン保護膜２１を形成し、アンテナパターン層２６とする（Ｓ２０２）。   FIG. 5A is a schematic cross-sectional view showing a second embodiment of the housing-integrated antenna, and FIG. 5B is an enlarged view of a portion B in FIG. FIG. 6 is a flowchart showing the manufacturing process. In this case, the second molded body 30 made of resin is first molded (S200). The antenna pattern 20 is formed on the second molded body 30 by plating, vapor deposition, printing, etc., and the antenna pattern protective film 21 is further formed thereon to form the antenna pattern layer 26 (S202).

給電点４２と接続される開口部３１に樹脂などからなる導電性ペースト４３を塗布する（Ｓ２０４）。続いて第１の成型体１０を形成し（Ｓ２０６）、アンテナパターン２０及び給電点４２を接続する（Ｓ２０８）   A conductive paste 43 made of resin or the like is applied to the opening 31 connected to the feeding point 42 (S204). Subsequently, the first molded body 10 is formed (S206), and the antenna pattern 20 and the feeding point 42 are connected (S208).

図７は、筐体一体型アンテナの第３の実施形態を表す模式断面図である。また、図８は製造工程のフロー図である。第２の成型体３０は絶縁物からなるシート状とする（Ｓ３００）。アンテナパターン２０をシート上に、メッキ、蒸着、印刷、板金貼り付けなどにより形成する（Ｓ３０２）。   FIG. 7 is a schematic cross-sectional view showing a third embodiment of a housing integrated antenna. FIG. 8 is a flowchart of the manufacturing process. The 2nd molded object 30 is made into the sheet form which consists of an insulator (S300). The antenna pattern 20 is formed on the sheet by plating, vapor deposition, printing, sheet metal pasting, or the like (S302).

続いて、アンテナパターン２０が第１の成形体１０と接着されるように折り曲げＳ３０４）、これを覆うように第１の成型体１０を形成する（Ｓ３０６）。基板または液晶表示部などからなる電源供給ユニット４０は、この折り曲げ部分において給電点４２と接続される（Ｓ３０８）。   Subsequently, the antenna pattern 20 is bent so as to be bonded to the first molded body 10 (S304), and the first molded body 10 is formed so as to cover the antenna pattern 20 (S306). The power supply unit 40 including a substrate or a liquid crystal display unit is connected to the feeding point 42 at the bent portion (S308).

図９（ａ）は、筐体一体型アンテナの第４の実施形態を表す模式断面図であり、図９（ｂ）、は図９（ａ）のＣ部の拡大図である。樹脂からなる第１及び第２の成形体１０，３０を予め形成しておく。アンテナパターン層２６を第１の成型体１０に挿入し、さらに第２の成形体３０を嵌合した後、第１及び第２の成型体１０，３０の端部を接着または超音波溶着などにより固定し外筐体５２とする。   FIG. 9A is a schematic cross-sectional view showing a fourth embodiment of the housing-integrated antenna, and FIG. 9B is an enlarged view of a portion C in FIG. 9A. First and second molded bodies 10 and 30 made of resin are formed in advance. After the antenna pattern layer 26 is inserted into the first molded body 10 and the second molded body 30 is fitted, the end portions of the first and second molded bodies 10 and 30 are bonded or ultrasonically welded. The outer casing 52 is fixed.

以上の第１〜第４の実施形態の筐体一体型アンテナを用いた電子機器において、筐体の内表面の広い面積をアンテナパターン領域とすることができる。このため、他種類の特性の異なるアンテナを備えつつ、電子機器の小型化が可能となる。   In the electronic apparatus using the housing-integrated antenna according to the first to fourth embodiments, a wide area on the inner surface of the housing can be used as an antenna pattern region. For this reason, it is possible to reduce the size of the electronic device while providing other types of antennas having different characteristics.

また、筐体と一体化することにより、基板と離すことができ、基板上に電子部品からのノイズの影響を低減できる。また、基板側の成型体にシールド効果を持たせるとノイズを一層低減することができる。また、手によりアンテナパターンを遮蔽することを防止でき、指向特性などのアンテナ特性が変化することを抑制できる。   Moreover, by integrating with a housing | casing, it can isolate | separate from a board | substrate and can reduce the influence of the noise from an electronic component on a board | substrate. Moreover, noise can be further reduced if the molded body on the substrate side has a shielding effect. Moreover, it is possible to prevent the antenna pattern from being shielded by hand, and to suppress changes in antenna characteristics such as directivity.

ここで、アンテナパターン２０について説明を行う。図１０は、本実施形態において使用できるアンテナの例を表す模式図である。図１０（ａ）はダイポールアンテナを表し、アンテナパターン２０は略２分の１波長の長さを有し、その中間部において給電部７０により励振される。   Here, the antenna pattern 20 will be described. FIG. 10 is a schematic diagram illustrating an example of an antenna that can be used in the present embodiment. FIG. 10A shows a dipole antenna. The antenna pattern 20 has a length of approximately one-half wavelength, and is excited by the power feeding unit 70 at an intermediate portion thereof.

図１０（ｂ）は、モノポールアンテナを表し、アンテナパターン２０は略４分の１波長の長さを有し、地板７２を考えると、２分の１波長アンテナと同様に考えることができる。   FIG. 10B shows a monopole antenna. The antenna pattern 20 has a length of approximately a quarter wavelength, and considering the ground plane 72, it can be considered in the same way as a half wavelength antenna.

図１０（ｃ）は、折り返しダイポールポールアンテナであり、高インピーダンスによる高放射効率が可能となる。   FIG. 10C shows a folded dipole pole antenna, which enables high radiation efficiency with high impedance.

図１０（ｄ）は、板状素子２０ａを有する逆Ｆアンテナであり、板状素子２０ａは略２分の１波長の周囲長を有する。この場合、アンテナが筐体を励振し筐体に電流を流すので、アンテナの実効的な寸法を大きくできる。   FIG. 10D shows an inverted F antenna having a plate-like element 20a, and the plate-like element 20a has a peripheral length of approximately one half wavelength. In this case, since the antenna excites the casing and current flows through the casing, the effective dimension of the antenna can be increased.

図１０に例示されたアンテナパターン２０を含むグループの中から選択されたアンテナを、図１（ｂ）のように外筐体５２に配置することによりマルチバンド化が可能となる。すなわち、ＧＳＭ（Global System for Mobile Communication）、ＤＣＳ（Digital Cellular System）／ＰＣＳ（Personal Communications Service）などの携帯電話トリプルバンドのみならず、無線ＬＡＮ、ＦＭ及びＡＭ放送、ＧＰＳ（Global Positioning System）、地上ディジタル放送を受信するワンセグ、Ｆｅｌｉｃａ（商標）・ＳＵＩＣＡ（商標）など電子決済用途を含めて送受信機能を拡大できる。しかし、筐体の外に露出したロッドアンテナではこのような多種類のアンテナを備えることが困難である。   By arranging an antenna selected from the group including the antenna pattern 20 illustrated in FIG. 10 in the outer casing 52 as shown in FIG. That is, not only mobile phone triple bands such as GSM (Global System for Mobile Communication), DCS (Digital Cellular System) / PCS (Personal Communications Service), but also wireless LAN, FM and AM broadcasting, GPS (Global Positioning System), ground The transmission / reception function can be expanded to include electronic payment applications such as One Seg, Felica (trademark) / SUICA (trademark) for receiving digital broadcasting. However, it is difficult to provide such a variety of antennas with the rod antenna exposed outside the casing.

以上、図面を参照しつつ本発明の実施の形態について説明した。しかし、本発明はこれらに限定されない。電子機器を構成するアンテナパターン、成型体、基板、絶縁膜、筐体などの材質、形状、サイズ、配置などに関して当業者が各種設計変更を行ったものであっても、本発明の主旨を逸脱しない限り本発明に包含される。   The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to these. Even if a person skilled in the art makes various design changes regarding the material, shape, size, arrangement, etc. of the antenna pattern, molded body, substrate, insulating film, casing, etc. constituting the electronic device, it departs from the gist of the present invention Unless otherwise included in the present invention.

本発明の実施形態にかかる電子機器を表す模式図である。It is a schematic diagram showing the electronic device concerning embodiment of this invention. 本実施形態の電子機器の筐体一体型アンテナの第１の実施形態を表す模式断面図である。1 is a schematic cross-sectional view illustrating a first embodiment of a housing-integrated antenna of an electronic device according to the present embodiment. 第１の実施の形態の製造工程のフロー図である。It is a flowchart of the manufacturing process of 1st Embodiment. 第１の実施の形態の変形例を表す模式断面図である。It is a schematic cross section showing the modification of 1st Embodiment. 筐体一体型アンテナの第２の実施の形態を表す模式断面図である。It is a schematic cross section showing 2nd Embodiment of a housing integrated antenna. 第２の実施の形態の製造工程のフロー図である。It is a flowchart of the manufacturing process of 2nd Embodiment. 筐体一体型アンテナの第３の実施の形態を表す模式断面図である。It is a schematic cross section showing 3rd Embodiment of a housing integrated antenna. 第３の実施の形態の製造工程のフロー図である。It is a flowchart of the manufacturing process of 3rd Embodiment. 筐体一体型アンテナの第４の実施の形態を表す模式断面図である。It is a schematic cross section showing 4th Embodiment of a housing integrated antenna. アンテナの構成を表す模式図である。It is a schematic diagram showing the structure of an antenna.

符号の説明Explanation of symbols

１０ 第１の成型体、２０ アンテナパターン、２１ 保護膜、２２ 絶縁膜、３０ 第２の成形体、５６ 外表面   10 First molded body, 20 Antenna pattern, 21 Protective film, 22 Insulating film, 30 Second molded body, 56 Outer surface

Claims (8)

凹型断面を有し樹脂からなる第１の成型体と、前記第１の成型体の内側に嵌合され、凹型断面を有し樹脂からなる第２の成型体と、前記第１の成型体と前記第２の成型体との間に挟持されたアンテナパターンと、を有する外筐体と、
前記外筐体と対向して組み合わせられ、画像表示部及び操作部の少なくともいずれかが設けられた内筐体と、
を備えたことを特徴とする電子機器。 A first molded body having a concave cross section and made of resin; a second molded body fitted inside the first molded body and having a concave cross section and made of resin; and the first molded body, An outer pattern having an antenna pattern sandwiched between the second molded body, and
An inner case that is combined with the outer case and provided with at least one of an image display unit and an operation unit;
An electronic device characterized by comprising: 前記第２の成型体は導電性であり、前記アンテナパターンとの間に絶縁膜が設けられたことを特徴とする請求項１に記載の電子機器。   The electronic apparatus according to claim 1, wherein the second molded body is conductive, and an insulating film is provided between the second molded body and the antenna pattern. 前記アンテナパターン及び前記第１の成型体の間には保護膜が設けられたことを特徴とする請求項１または２に記載の電子機器。   The electronic apparatus according to claim 1, wherein a protective film is provided between the antenna pattern and the first molded body. 前記アンテナパターンは、フィルム状の前記絶縁膜または前記保護膜の上に形成された導電層からなることを特徴とする請求項２または３に記載の電子機器。   The electronic device according to claim 2, wherein the antenna pattern includes a conductive layer formed on the insulating film or the protective film in a film form. 前記アンテナパターンは板金からなることを特徴とする請求項１または２に記載の電子機器。   The electronic device according to claim 1, wherein the antenna pattern is made of sheet metal. 請求項１〜５のいずれか１つに記載の電子機器の製造方法であって、
前記第１の成型体を形成する工程と、
前記アンテナパターンを前記第１の成型体の内側に挿入する工程と、
前記アンテナパターンを挟持するように、前記第２の成型体を前記第１の成型体の内側に形成または嵌合する工程と、
を含むことを特徴とする電子機器の製造方法。 It is a manufacturing method of the electronic device according to any one of claims 1 to 5,
Forming the first molded body;
Inserting the antenna pattern into the first molded body;
Forming or fitting the second molded body inside the first molded body so as to sandwich the antenna pattern;
The manufacturing method of the electronic device characterized by including. 請求項１に記載の電子機器の製造方法であって、
前記第２の成型体の表面に、印刷、メッキ、導電材塗布のうちのいずれかにより前記アンテナパターンを形成する工程と、
前記アンテナパターンを挟持するように前記第２成型体の外側に前記第１の成型体を形成する工程と、
を含むことを特徴とする電子機器の製造方法。 It is a manufacturing method of the electronic device of Claim 1, Comprising:
Forming the antenna pattern on the surface of the second molded body by any one of printing, plating, and applying a conductive material;
Forming the first molded body on the outside of the second molded body so as to sandwich the antenna pattern;
The manufacturing method of the electronic device characterized by including. 請求項１に記載の電子機器の製造方法であって、
前記第２の成型体をシート状に形成する工程と、
前記第２の成型体上に前記アンテナパターンを形成し、前記第２の成型体及び前記アンテナパターンの端部を内部へ折り曲げる工程と、
前記アンテナパターンを挟持するように前記第１の成型体を前記第２の成型体の外側に形成する工程と、
を含むことを特徴とする電子機器の製造方法。 It is a manufacturing method of the electronic device of Claim 1, Comprising:
Forming the second molded body into a sheet;
Forming the antenna pattern on the second molded body, bending the second molded body and an end of the antenna pattern inward,
Forming the first molded body on the outside of the second molded body so as to sandwich the antenna pattern;
The manufacturing method of the electronic device characterized by including.
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